medium SHARE_COUNT_MISREAD_RISK
SPMO: reading balanceOf() as shares understates by 0.2021% (multiplier 1.002024884x)
Who carries the exposure
Any integrator that presents SPMO balanceOf() as a share count. The contract itself is behaving as ERC-8056 specifies and is not at fault.
The contract named above is what was READ. Naming it is not an accusation against it: a Stock Token that moves uiMultiplier() is doing what ERC-8056 specifies.
SPMO reports uiMultiplier() = 1002024883742416310 (1.002024884), which is CORRECT AND SPEC-COMPLIANT behaviour under ERC-8056 — this finding is not a defect in the token contract. It records the exposure carried by a caller that reads balanceOf() as shares. Under ERC-8056 a corporate action moves the multiplier rather than balances, so balanceOf() returns tokens and share-equivalents = balance * uiMultiplier() / 1e18. A surface presenting the raw balance as a share count understates it by 0.2021% (the true count is 1.0020x the raw balance). Token value computed as balance * Chainlink feed price is unaffected, because the feed is already multiplier-adjusted.
Impact
0.2021%
totalSupply raw 36.7790 tokens vs 36.8535 share-equivalents (delta 0.0745). Presenting the raw balance as a share count understates by 0.2021%; equivalently the true count is 1.0020x the raw.
Evidence — 2/2 citations re-fetched and byte-compared
uiMultiplier() == 1002024883742416310
0x0000000000000000000000000000000000000000000000000de7e852a3919db6
totalSupply() == 36779026750000000000
0x000000000000000000000000000000000000000000000001fe6959f72a56ec00
Right of reply
No reply has been received for this finding. Anyone named here can have a response published verbatim and unedited alongside it. A finding shown to be wrong is corrected by changing the rule that produced it, with the notice recorded in the repository. Open a right-of-reply issue or see docs/RIGHT-OF-REPLY.md. Pre-publication notice is deliberately not claimed: the sweep publishes on a timer and for most findings the subject is a contract, not a person to notify.